Myrtle leaves have a flavor that's difficult to duplicate. If you can't find them, substitute bay leaves or a rosemary sprig. Use lima beans if fresh fava beans aren't available.
Cook fava beans in boiling water 1 minute. Drain and rinse with cold water. Drain. Remove and discard tough outer skins from beans. Cook onions in boiling water 1 minute. Drain and rinse with cold water; drain. Pinch stem end of each onion; discard peels. Combine beans and onions; set aside.
Heat oil in a large nonstick skillet over medium-high heat. Sprinkle pork with 1/4 teaspoon salt. Add pork to pan; cook 2 minutes on each side or until browned. Remove pork from pan. Stir in 1/4 teaspoon salt, wine, thyme, pepper, garlic, and myrtle; cook 1 minute, scraping pan to loosen browned bits. Return pork to pan. Reduce heat, and cook 4 minutes; turn pork occasionally.
Add bean mixture, 1/2 teaspoon salt, 3/4 cup water, parsley, and basil to pan. Cover and cook 12 minutes. Remove pork from pan. Bring bean mixture to a boil; cook until reduced to 2 cups (about 4 minutes). Discard myrtle. Serve bean mixture with pork chops.